Powerware 9330 Manuale Utente Pagina 75

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6-- 1
Powerware 9330 (10 kVA--40 kVA) Installation and Operation
164201300 REV. G 061502
Understanding UPS
Operation
6.1 Looking Inside the UPS System
The Powerware 9330 is a continuous duty, solid-state, transformerless (at 208
VA C), three phase, true online system that provide conditioned and uninterruptible
AC power to the UPS systems output. The UPS supports process control, data
processing, telecommunications/PBX, research, and non---patient medical
equipment. The Powerware 9330 maintains power to the critical loads during
commercial electrical power brownout, blackout, overvoltage, undervoltage, and
out-of-tolerance frequency conditions.
The basic system consists of a rectifier, battery charger, DC booster, inverter,
monitoring/operation control panel, integrated communications server, and
microprocessor controlled (DSP) logic.
In this manual, the power required by your equipment is called the critical load.The
UPS supplies the critical load with conditioned power that is synchronized with your
utility power. Figure 6---1 shows the main elements of the UPS.
6
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